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Finding the Fourth Proportional to 135,376, 186,792.96 and 87,622.72

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Solution

The fourth proportional to 135,376, 186,792.96 and 87,622.72 is: 120,902.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,376 : 186,792.96 = 87,622.72 : x
  2. Step 2: Convert to fraction form
    135,376/186,792.96 = 87,622.72/x
  3. Step 3: Cross multiply
    135,376x = 186,792.96 × 87,622.72
  4. Step 4: Simplify right side
    135,376x = 16,367,307,232.05
  5. Step 5: Solve for x
    x = 16,367,307,232.05/135,376
  6. Step 6: Final answer
    x = 120,902.58

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.